• Thumbnail for Barr body
    A Barr body (named after discoverer Murray Barr) or X-chromatin is an inactive X chromosome. In species with XY sex-determination (including humans),...
    10 KB (1,144 words) - 11:26, 24 July 2024
  • Thumbnail for X-inactivation
    such as the Xa. The inactive X forms a discrete body within the nucleus called a Barr body. The Barr body is generally located on the periphery of the nucleus...
    48 KB (5,683 words) - 03:09, 15 September 2024
  • Pharmaceutical in 2008 Barr (surname) Brendan Fowler, a.k.a. BARR, American musician Barr (tribe), a people in southwest Asia Barr body, the inactive chromosome...
    1 KB (185 words) - 20:20, 17 May 2022
  • can be done by identifying Barr body, a drumstick like appendage located in the rim of the nucleus in somatic cells. Barr body is the inactive X chromosome...
    1 KB (185 words) - 22:44, 2 March 2024
  • Thumbnail for Epstein–Barr virus
    The Epstein–Barr virus (EBV), formally called Human gammaherpesvirus 4, is one of the nine known human herpesvirus types in the herpes family, and is one...
    62 KB (6,398 words) - 07:03, 30 September 2024
  • student Ewart George Bertram, in 1948, an important cell structure, the "Barr body". Born in Belmont, Ontario, he was educated at the University of Western...
    5 KB (450 words) - 19:32, 6 July 2024
  • Thumbnail for X chromosome
    This phenomenon is called X-inactivation or Lyonization, and creates a Barr body. If X-inactivation in the somatic cell meant a complete de-functionalizing...
    42 KB (3,902 words) - 05:50, 15 August 2024
  • Thumbnail for Karyotype
    predicted by observation of interphase cells (see amniotic centesis and Barr body). Six different characteristics of karyotypes are usually observed and...
    59 KB (6,991 words) - 23:19, 12 September 2024
  • Thumbnail for Calico cat
    These dark masses became known as Barr bodies. In 1959, Japanese cell biologist Susumu Ohno determined the Barr bodies were X chromosomes. In 1961, Mary...
    17 KB (2,001 words) - 05:18, 10 September 2024
  • Thumbnail for Renée Richards
    Committee (USOC) required all female competitors to verify their sex with a Barr body test of their chromosomes. Richards applied to play in the US Open in...
    31 KB (2,207 words) - 22:01, 26 September 2024